Optimization and parametric analysis of a multi-junction high-concentrator PV cell combined with a straight fins heat sink
| Autor: | Hesham Zaghloul, Mohamed Emam, M.F. Abd Rabbo, M.A. Abdelrahman |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Fin Renewable Energy Sustainability and the Environment Passive cooling 020209 energy Energy Engineering and Power Technology 02 engineering and technology Mechanics Heat sink Concentration ratio Wind speed law.invention Fuel Technology 020401 chemical engineering Nuclear Energy and Engineering law Heat transfer Solar cell 0202 electrical engineering electronic engineering information engineering Water cooling 0204 chemical engineering |
| Zdroj: | Energy Conversion and Management. 243:114382 |
| ISSN: | 0196-8904 |
| DOI: | 10.1016/j.enconman.2021.114382 |
| Popis: | An efficient cooling system is crucial for solar cells operating under high concentration ratios to maintain the cell temperature below the maximum allowable temperature limit and to ensure higher efficiency. The current study focuses on the passive cooling of a triple-junction solar cell using a straight fins heat sink. A comprehensive 3D heat transfer and electrical model integrating the CPV cell full layers and the straight fins heat sink is developed and numerically simulated. The effects of ambient temperature, wind speed, and concentration ratio have been studied over various lengths of the straight fins heat sink. In harsh weather conditions of 45 °C ambient temperature, 1 m/s wind speed, and 500 suns, the straight fins reduced cell temperature by approximately 421.2 °C to 432.1 °C with reference to the uncooled cell depending on fins length. Accordingly, the cooling system enabled to realize a higher concentration of 1250 suns producing 43.4 W/cm2 while the uncooled cell is limited at 72.5 suns with an electrical output of 2.5 W/cm2. Environmental analysis showed that cooling of CPV system using straight fins could reduce annual carbon dioxide emissions by 903 and 1705 tons/m2 at a solar concentration of 500 and 1000 suns respectively. Additionally, Taguchi analysis is performed to find the most affecting parameter on the cell performance and the optimum fin length. The analysis showed that concentration ratio has the most significant effect on the performance of the system, followed by ambient temperature and then fin length. Conversely, the impact of wind speed can be neglected. |
| Databáze: | OpenAIRE |
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